Electric kettle



FIG. 1 is a top, front and side perspective view of an electric kettle showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof from the right of FIG. 2;

FIG. 5 is a side elevational view thereof from the left of FIG. 2; and,

FIG. 6 is a top plan view thereof. 

The ornamental design for an electric kettle, as shown. 